Sudoku Variants

Samurai Sudoku

100 Samurai Sudoku Puzzles

Samurai Sudoku

Samurai Sudoku is a brain straining version which consists of five normal sudoku puzzles which overlap.

I have to admit that I've never tried to solve one of these - just looking at them gives me a headache!

Super Sudoku

Super Sudoku is an extension of the basic puzzle to a 16 by 16 grid 256 squares. These are subdivided into 16 individual 4 by 4 subsquares. The numbers hexadecimal letters A-F are usually added to the digits 1-9 and 0, but as with ordinary Sudoku any distinct symbols could be used.